package work20241207_chap8.b;

/**
 * @author zdl
 * @date 2024/12/7
 */
interface IA{
    void m1();
    void m2();
}
abstract class MyClass implements IA{
    @Override
    public void m1() {

    }
}
class MyClassB extends MyClass{

    @Override
    public void m2() {

    }
}
public class Demo {
    public static void main(String[] args) {

    }
}
